Home / 3,918.39-5,877.51-1,578.33

Finding the Fourth Proportional to 3,918.39, 5,877.51 and 1,578.33

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Solution

The fourth proportional to 3,918.39, 5,877.51 and 1,578.33 is: 2,367.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.39 : 5,877.51 = 1,578.33 : x
  2. Step 2: Convert to fraction form
    3,918.39/5,877.51 = 1,578.33/x
  3. Step 3: Cross multiply
    3,918.39x = 5,877.51 × 1,578.33
  4. Step 4: Simplify right side
    3,918.39x = 9,276,678.32
  5. Step 5: Solve for x
    x = 9,276,678.32/3,918.39
  6. Step 6: Final answer
    x = 2,367.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.